Invention Grant
US08388479B2 Automatic transmission having torque converter bypass 有权
自动变速器具有变矩器旁路

Automatic transmission having torque converter bypass
Abstract:
An automatic transmission having an improved lock up torque converter configuration includes two drive members: a first quill or tubular drive member which carries the output of the torque converter to the transmission gearbox and a second co-axial shaft or drive member which is driven by the torque converter lockup clutch and thus directly carries the engine output to the transmission gear box and bypasses the torque converter. The transmission gearbox includes two planetary gear assemblies having certain elements which are selectively grounded to the transmission housing by two friction brakes. This transmission, torque converter and torque converter clutch configuration prevents torque converter clutch engagement in its lower gear and forces torque converter clutch lockup in its upper gear.
Public/Granted literature
Information query
Patent Agency Ranking
0/0